"Summary of major provisions: This bill unconstitutionally allows the state of Arizona to regulate immigration by making any non-citizen who has entered the United States without permission guilty of the additional state crime of trespassing. It gives local police officers authority to investigate, detain and arrest people for perceived immigration violations without the benefit of proper training, exacerbating the problem of racial profiling and raising concerns about the prolonged detention of citizens and legal residents." ~ACLU of Arizona